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Youtube Theater mode 21:9 widescreen (and others) fix

For whatever reason, youtube fixes the frame to 16:9 in theater mode, but this should fix it removing top and bottom black bar

/* ==UserStyle==
@name         Youtube Theater mode 21:9 widescreen (and others) fix
@version      1.0.0
@description  For whatever reason, youtube fixes the frame to 16:9 in theater mode, but this should fix it removing top and bottom black bar
@author       toppits

@namespace https://greasyfork.org/users/371090
==/UserStyle== */
@-moz-document domain("youtube.com"){
video.video-stream.html5-main-video {
	top: 0 !important;
}

ytd-watch-flexy[theater] #player-theater-container.ytd-watch-flexy {
	height: calc(var(--ytd-watch-flexy-height-ratio) / var(--ytd-watch-flexy-width-ratio) * (100vw - 12px)) !important;
	max-height: calc(100vh - 150px) !important;
}

ytd-watch-flexy[fullscreen] #player-theater-container.ytd-watch-flexy {
	height: 100vh !important;
	max-height: 100vh !important;
}
}